Do you have a cassete player ? If so then jus buy an adapter cassete for 150rs.
If you have a CD player or something than either you can get a wire attached to your CD changer line which will work as auxilary.
Or you can buy a FM transmitter which will plug into your ipod and transmit at a freqeuncy and you tune to it on your radio.
The device costs a 1000+ and should be available at reputed gadget stores.